Oeiras Weather in May

During May, Oeiras experiences pleasant daytime temperatures of 20°C (68°F) and cooler nights around 15°C (59°F). Some rainfall is typical during this period.

Rainfall in Oeiras in May

Looking at the last 30 years, the data shows about 8 days with rain, averaging 44 mm (1.7 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Oeiras in May

Oeiras has excellent weather in May, with days reaching 20°C (68°F) and nights cooling to 15°C (59°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Oeiras in May

Enjoy a sunny month with about 316 hours of sunshine, the clear skies make Oeiras even more beautiful.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Oeiras.